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Saint-Malo, originally built as a walled citadel guarding the mouth of the Rance river, was for centuries home to feared pirates. They’ve all gone to Davy Jones’ Locker, though, and now it’s Brittany’s most-visited city. Walk the bustling streets of the reconstructed old city and the vast beaches, making sure to stop at the Grande Porte, Porte St-Vincent, the town’s castle with its Musée de la Ville and the Grand Aquarium.